com.blazebit.persistence.view

Class AttributeFilterProvider

java.lang.Object

com.blazebit.persistence.view.AttributeFilterProvider

Direct Known Subclasses:

ContainsFilter, ContainsIgnoreCaseFilter, EndsWithFilter, EndsWithIgnoreCaseFilter, EqualFilter, GreaterOrEqualFilter, GreaterThanFilter, LessOrEqualFilter, LessThanFilter, NullFilter, StartsWithFilter, StartsWithIgnoreCaseFilter

public abstract class AttributeFilterProvider
extends Object

An attribute filter provider is an object that applies restrictions on a WhereBuilder. Attribute filter providers must have a constructor that accepts either of the following parameter types

• none
• Class
• Object
• Class, Object

The Class argument refers to the expected type i.e. the attribute type. The object argument refers to the filter value.

Since:

1.0.0

Author:

Christian Beikov

Constructor Summary

Constructors

Constructor and Description
AttributeFilterProvider()

Method Summary

Modifier and Type	Method and Description
protected <T> T	apply(RestrictionBuilder<T> restrictionBuilder) Applies a restriction on the given restriction builder.
<T extends WhereBuilder<T>> T	apply(T whereBuilder, String attributeExpression) Applies restrictions for the given attributeExpression on the given where builder.
<T extends WhereBuilder<T>> T	apply(T whereBuilder, String subqueryAlias, String subqueryExpresion, SubqueryProvider provider) Applies restrictions for the given subquery on the given where builder.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AttributeFilterProvider

public AttributeFilterProvider()

Method Detail

apply

public <T extends WhereBuilder<T>> T apply(T whereBuilder,
                                           String attributeExpression)

Applies restrictions for the given attributeExpression on the given where builder.

Type Parameters:

T - The actual type of the where builder

Parameters:

whereBuilder - The where builder on which the restrictions should be applied

attributeExpression - The expression for the attribute on which a restriction should be applied

Returns:

The object which the restriction builder returns on a terminal operation

apply

public <T extends WhereBuilder<T>> T apply(T whereBuilder,
                                           String subqueryAlias,
                                           String subqueryExpresion,
                                           SubqueryProvider provider)

Applies restrictions for the given subquery on the given where builder.

Type Parameters:

T - The actual type of the where builder

Parameters:

whereBuilder - The where builder on which the restrictions should be applied

subqueryAlias - The alias for the subquery which will be replaced by the actual subquery

subqueryExpresion - The expression which wraps a subquery

provider - The provider for the subquery

Returns:

The object which the restriction builder returns on a terminal operation

apply

protected <T> T apply(RestrictionBuilder<T> restrictionBuilder)

Applies a restriction on the given restriction builder.

Type Parameters:

T - The return type of terminal operations of the restriction builder

Parameters:

restrictionBuilder - The restriction builder

Returns:

The object which the restriction builder returns on a terminal operation